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Efficient, self-contained handling of identity in peer-to-peer systems

Summary: Efficient, self-contained handling of identity in
peer-to-peer systems

Karl Aberer
, Anwitaman Datta, Manfred Hauswirth
School of Computer and Communication Sciences
Swiss Federal Institute of Technology Lausanne (EPFL)
CH-1015 Lausanne, Switzerland
Email: ¢ karl.aberer, anwitaman.datta, manfred.hauswirth£ @epfl.ch
Identification is an essential building block for many services in distributed information
systems. The quality and purpose of identification may differ, but the basic underlying prob-
lem is always to bind a set of attributes to an identifier in a unique and deterministic way.
Name/directory services such as DNS, X.500, or UDDI are a well-established concept to ad-
dress this problem in distributed information systems. However, none of these services ad-
dresses the specific requirements of peer-to-peer systems with respect to dynamism, decen-
tralization and maintenance. We propose the implementation of directories using a structured
peer-to-peer overlay network and apply this approach to support self-contained maintenance
of routing tables with dynamic IP addresses in structured P2P systems. Thus we can keep


Source: Aberer, Karl - Faculté Informatique et Communications, Ecole Polytechnique Fédérale de Lausanne


Collections: Computer Technologies and Information Sciences